Base | Representation |
---|---|
bin | 1010001000101… |
… | …11010101001111 |
3 | 12220222222112112 |
4 | 11010113111033 |
5 | 133231431343 |
6 | 12234254235 |
7 | 2051513345 |
oct | 504272517 |
9 | 186888475 |
10 | 85030223 |
11 | 43aa7513 |
12 | 2458737b |
13 | 14801b55 |
14 | b415995 |
15 | 76e9218 |
hex | 511754f |
85030223 has 2 divisors, whose sum is σ = 85030224. Its totient is φ = 85030222.
The previous prime is 85030217. The next prime is 85030237. The reversal of 85030223 is 32203058.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 85030223 - 26 = 85030159 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (85030423) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42515111 + 42515112.
It is an arithmetic number, because the mean of its divisors is an integer number (42515112).
Almost surely, 285030223 is an apocalyptic number.
85030223 is a deficient number, since it is larger than the sum of its proper divisors (1).
85030223 is an equidigital number, since it uses as much as digits as its factorization.
85030223 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1440, while the sum is 23.
The square root of 85030223 is about 9221.1833839264. The cubic root of 85030223 is about 439.7350729556.
The spelling of 85030223 in words is "eighty-five million, thirty thousand, two hundred twenty-three".
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